
.head {
    width: 980px;
    height: 80px;
    margin: 0 auto;
    position: relative;

}


.logo {
    position: absolute;
    left: 100px;
    top: 15px;

}


.login {
    position: absolute;
    right: 100px;
    top: 34px;
    color: #ff9c00;
    cursor: pointer;
    font-size: 18px;
}


.nav {
    width: 100%;
    height: 50px;
    background: #ff9c00;
}


.nav_in {
    width: 820px;
    margin: 0 auto;
    line-height: 50px;
    color: #fff;
    padding-left: 160px;
}


.nav_in span {
    float: left;
    padding: 0 38px;
    color: #9c5132;
    cursor: pointer;
}


.banner {
    text-align: center;
    height: 494px;
}
